DIY 2 Vero 29 Gen7 c

[Randomblame]

You need a 100k poti, 10k would limit you to 10% of the driver output at max....
growth is awesome for only 20w, BTW.

Also try to rise the temperatures inside your room to 25-30°C for max. photosynthesis. Low temps leads to less transpiration and this can lead into some nute deficits over the time.
Remember, a plant with only 500μMol/s at 30°C grows faster as a plant with 1500μMol/s at 20°C.

Assuming these lights have no lenses you can lower the heights to 45-60cm without getting bleaching to rise the ambient temperature. If this is not enough, reduce the air flow or use an additional heater.

 

[Herrer800]

Thanks Bro, you are now putting a 100k, in fact it was impressive 20watt growth, now that goes to 150w comes out a monster ahahahahah

 

[Randomblame]

Hope so!

 

[verticalgrow]

Bro I solved, then I had mounted a potentiometer to the driver HLG 185H 1400b the potentiometer is 10K, I came across the doubt, I removed the potentiometer is done go without potentiometer, I lit the LEDs and blinded me from the very light ahahahaha light, In fact now the heat sink feels the heat, before I did not feel the heat,

hahaha good to hear bro & good Luck for rest of grow

 

[Herrer800]

hahaha good to hear bro & good Luck for rest of grow

Thank you brother, I'll let you know news, how many vegetative days do I do it?

 

[verticalgrow]

Thank you brother, I'll let you know news, how many vegetative days do I do it?

3 - 6 weeks veg but depends on how big u want to grow plants after stretch in flower.
If u want 3 foot or 90cm high plants then flip to 12/12 when plants are 45cm high

 

[Herrer800]

Ok I leave them 10 more days to 18/6 I'll let you know

 

[verticalgrow]

Ok I leave them 10 more days to 18/6 I'll let you know

Thx bro & how many gallons/litres are the pots

 

[Herrer800]

Thx bro & how many gallons/litres are the pots

So 18 Lt

 

[Herrer800]

Thx bro & how many gallons/litres are the pots

I would like to ask it is the first time I put a led panel in action, but is it normal for the heatsink to heat up enough?

 

[verticalgrow]

I would like to ask it is the first time I put a led panel in action, but is it normal for the heatsink to heat up enough?

yes bro,
the heatsink should be warm so you can touch it but not hot
They last longer if run cooler too.

 

[Herrer800]

yes bro,
the heatsink should be warm so you can touch it but not hot
They last longer if run cooler too.

Bro I used this heatsink with two Pc fans over to cool down, I think that should suffice, I also put a fan on them.

 

[Randomblame]

You don't need so much air movement, one fan should be enough.
You need 40cm² per watt for active cooling and 110-120cm² for passive...
Calculate all surfaces together (bottomside, both sides of each fins, backside and both front sides) and you know how much power a heatsink can lead away.

 

[lbristol]

Can anyone here not only tell me what my PPFD is but tell me how I get that number for future builds?

I'm running (9) Vero29 3k Gen 7's over a 4x4 at 2.1a. Each string of (3) vero's is powered by an HLG-320H-2100B. They are all attached to a central PWM dimmer.

Appreciate the help and the math lesson ... looking for the equation.